Postmark Usage Statistics

Websites using Postmark

Download Lead List

Get a list of 50,939 websites using Postmark which includes location information, hosting data, contact details, 36,198 currently live websites and 14,741 sites that used this technology previously.

Top 10k
Top 100k
Top 1m

Quantcast Top 10k
164 of 10,000


Quantcast Top 100k
975 of 100,000


BuiltWith Top Million
3,905 of 777,354


Entire Internet
39,797 of 374,435,284


Log in or Sign up for Free to see Postmark history back another year to January 2016. View plans for historical access back to August 2012.

Email delivery for web apps.

Categories: Email Hosting Providers · Transactional Email

Technology Won
GoDaddy Email 1,352
Mandrill 1,300

This table shows where Postmark are gaining/losing customers from within the technologies in the same sub-categories of Transactional Email. View the full report for more information regarding countries, states and where Postmark's customers come from.

Physical locations of businesses using Postmark.


Top 10,000 Sites
Top 100,000 Sites
Top 1 Million Sites

This chart shows the amount of websites within the top 10k, 100k, and 1 million sites groups that are categorized as being in the specific vertical.

Get access to data on 50,939 websites that have used Postmark. We know of 36,198 live websites using Postmark and an additional 14,741 sites that used Postmark historically

View Website List

Get a list of websites using Postmark

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Transactional Email


48,638 websites


470,537 websites


68,792 websites

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Browse groups of technologies that we track.